title: [Pulsatile treatment with gonadotropin-releasing hormone (GnRH)].
abstract: The different ways of administration condition the frequency of the pulsatile GnRH, because of the different rate of depot. High frequencies (60-90/min) can be reached only with the intravenous route which is suitable for ovulation induction: ovulation is reached in 73-92% of women affected by hypothalamic amenorrhoea and in 41-51% of women affected by polycystic ovarian syndrome (previously suppressed with buserelin); overstimulation risk is lesser than during therapy with gonadotropins. Subcutaneous route is suitable for puberty induction which needs long-term treatment (18-24 months); the results are generally good, except in hypopituitaric patients. Intranasally route needs frequencies greater than 150-180 min: low frequencies administration (3 times/day) is sufficient to treat cryptorchidism and to reach good results (30-70%); moreover intranasally route can be useful to maintain the results reached with long term therapy with LHRH or gonadotropins.
authors.affiliation: Istituto di Semeiotica Medica, Università di Padova.
authors.forename: R G
authors.initials: RG
authors.lastname: Motta
authors.forename: S
authors.initials: S
authors.lastname: Botteon
authors.forename: I
authors.initials: I
authors.lastname: Mastrogiacomo
mesh_terms: D007987:Gonadotropin-Releasing Hormone / Q000008:administration & dosage / Q000627:therapeutic use*; D006801:Humans; D011673:Pulsatile Flow
chemical_list: D007987:Gonadotropin-Releasing Hormone
vernacular_title: La terapia pulsatile con Gonadotropin-releasing hormone (GnRH).